Fuel injection valve with outward opening nozzle needle e.g. for fuel injection valves, has longitudinal hole nozzle body and outward opening having nozzle needle which is movably provided in longitudinal hole

摘要

The valve has a longitudinal hole (12) nozzle body (10) and an outward opening having a nozzle needle (16) which is movably provided in the longitudinal hole. The holes have conically expandable seat face ends (14). The needle has a conical pinhead (20) whose conical exterior surface (22) in a closing position seals the valve with the conical seat face of the nozzle body and separated from the opening seat face of the valve. The pinhead is provided in such a way that the conical exterior surface is flexibly ductile with the stationary closing forces arising in a valve closing position.